Windmill-drive.



R. B. CUMMINS.

WINDMILL DRIVE.

APPLIoATIoN FILED rmmo, 190B.

Patented Mar. 22, 1910.

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artoznm Auonzw n mmm co Pwuvn L ROBERT B. CUMMINS, 0F STERLING CITY,TEXAS.

WINDMILL-DRIVE.

Specication of Letters Patent.

Application filed February 19, 1908. Serial No. 416,711.

To all whom 'it may concern.'

Be it known that I, ROBERT B. CUMMINS, a citizen of the United States,residing at Sterling City, in the county of Sterling and State of Texas,have invented new and useful Improvements in Windmill-Drives, of whichthe following is a specification.

This invention relates to a wind mill drive, the object being to providea drive for windmills whereby the rotary motion of its shaft isconverted into a reciprocatory motion of the plunger rod, the partsbeing so arranged as to produce a perfect alinement of the movable partsand a perfect and steady slidable motion of the reciprocating member.

Another object of the invention is to provide a windmill drive havingits working parts so arranged as to be readily regulated to produce along or short stroke of the plunger rod connected to the device.

To these and other ends the invention resides in the novelconstructionof parts and their arrangement in operative combination hereinafterfully described and claimed.

In the accompanying drawings, Figure 1 is a front elevation of a windmill drive con structed in accordance with my invention. Fig. 2 is aside elevation of the same. Fig. 3 is a top plan view of the same. Figs.4 and 5 illustrate details.

Referring particularly to Figs. 1, 2 and 3 of the drawings the numeral 1designates the upper frame of a windmill constructed in accordance withmy invention, provided with the body portion 2 having upwardly extendingarms 3 provided with the offsets l, semi-cylindrical in cross section,and adapted to form the lower bearings for the operating shaft 5 of thewind wheel. The frame 1 has its body portion 2 provided with arearwardly extending arm 6, having an upward extension 7 terminating ina transversely arranged head 8, extending from each side of theextension 7 The body portion 2 of the frame 1 is provided with a centralopening adapted for the reception of a reciprocating plunger rod 9,having its lower end secured to a pump, not shown, and its upper endsecured to a plunger rod head 10, having the vertical spaced arms 11,preferably four in number, two of which are arranged upon each side ofthe lunger rod, adjacent to the arms 3 of the rame l, and have theirupper ends working in openings 12 provided by the head 8 of the frame.

The arms 11 are arranged in pairs upon each side of the frame and aresuiliciently spaced apart to receive therebetween a pitman head 13. Thispitman head 13 is provided near each of its ends with a series ofperforations adapted to correspond with a series of perforations 14arranged upon each pair of arms, and adapted for the reception of boltsor retaining elements 15, by which the head is secured between the arms.The pitman head 13 is provided with a central opening 16, and centrallyarranged within this opening is a cylindrical bar 17 to which a pitman18 is adapted to be secured. The opposite end of the pitman 18 isadapted to engage the crank member 19 of the operating shaft 5 of thewind wheel. The crank 19 has both of its extending arms provided with aseries of perforations, and the depending arm of the operating shaft 5is provided with a centrally arranged channel, and a series ofperforations corresponding with those of the crank 19. Upon the oppositeside of the frame to that of the depending arm of the operating shaft isan L-sha ed member 20, having one of its members cyiindrical in crosssection and adapted for engagement with one of the bearings 4 providedby the arms 3 of the frame. The other arm of the member 20 is providedwith a channel corresponding with that of the depending arm of theoperating shaft 5, and is also provided with a series of perforationssimilar to those arranged upon the depending member of the operating armand the arms of the crank 19. The arms 19 are adapted for engagementwithin the channels provided by the arm of the operating shaft and thatof the member 20, and are secured between these members by a series ofbolts or retaining members 20 arranged within the perforationspreviously referred to. By providing the arms of the U shaped crank 19with a series of perforations eorresponding to and alining with theperforations of the right angular extension of the operating shaft 5 andthe right angular channeled arm of the member 20, it will be readilyunderstood that a longer or a shorter stroke may be given to the crankand plunger rod of the wind mill by merely changing the retainingelements 20 and 15 and ar ranging these elements in different open-Patented Mar. 22, 1910.

ings, am different sized pitm'an: 18:y being? of the operating shaft 5fand thevextension.A

20, the plunger rod 9 is reciprocated in a perfectly vertical direction,and; that sagging or Wabbling of the parts is entirely OVGICO'IHE Havingthus fully described the4 invention what is 'claimed asnewA is:

In a Windmill drive, a frame,y saidv frame beingA provided With av pairof"` side; armsy andz a central' arm projectingabove the sidev arms;Vthe' lower portionof" thek frame being provided With an opening; adaptedfor the reception of;A a pump rod, a 'second frame removably connectedWith the pump rod; thisv frame having' its sides each Comprising a pairof. spaced arms` an adjustable block mounted between the spaced arms,the centraly armi` ofthe first frame having an oset projecting portionprovided With openings toreceive the rods of the second frame, a linkconnected with the block positioned betweenr the arms of the secondframe, a. U-

shapedmember secured to the free end of the link, the side arms of themain frame being provided With offset portions adapted to serve asbearings,v a divided? shaft having' offset endspositioned \vit1iin=thesebearings, and means for connecting tli'e said off setv memberso'f theshaft? with the f UA? shaped member connected With the link'.

In testimony whereof aiX my signature in= presence of" two Witnesses.l

ROBERT Bi GUMMINS. Witnesses-z Jl Wr. Twnnnnn7 H H'. HOOKER;

